절수에 의한 Mongolian Gerbil 장기중량변화에 관한 분석연구

김무강,이기훈,이강이,송치원,이경열,권효정,박미선,정승혁,이행연,김명철 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

In this study, authors measured the each organ weight of the long term water deprived Mongolian gerbil, after then we calculated the mean, standard deviation, variance coefficient of the real measured organ weight and induced the organ weight change quantity, rate of quantity, deviation between measured and theological organ weight, deviation rate, sum of deviation rate, organ weight change rate, rate of organ weight by the mathematical formula. The results obtained as follow 1. The weight of the brains, lung, and testis were abruptly decreased after water deprived until the 5th day, after then slowly decreased until the 20th day. 2. The weight of the heart was decreased gradually from the first day until the 20th day. 3. The weight of the liver was abruptly decreased until the 10th day, after then the more slowly decreased until the 20th day. 4. The weight of the thymus, spleen, kidney, and pancreas were abruptly decreased until the 15th day, after then increased slowly until 20th day but the weight of the kidney was abruptly increased from the 10th day. 5. The organ weight change rate and the rate of the each day organ weight were very diversified.

판상형 충전제의 함량과 배향에 따른 PP복합체의 열팽창계수 영향 연구

이기윤(Kee Yoon Lee),이용현(Yong Hyun Lee),정선경(Sun Kyoung Jeoung),황효연(Hyo Yeon Hwang),이승구(Seung Goo Lee) 한국고분자학회 2012 폴리머 Vol.36 No.3

두 가지의 종횡비(ρα=a1/a3 and ρβ=a1/a2)에 의해 특징지어진 3차원 타원체(a1 > a2 > a3)를 사용하여 polypropylene 복합체의 판상형 충전제 함량과 방향이 열팽창률에 미치는 영향에 대해 실험적인 연구를 수행하였다. 측정된 실험적인 값은 Lee와 그의 연구자들이 제안한 이론적인 모델에 의한 계산 값과 비교분석되었다. 판상형충전제로는 운모와 탈크가 사용되었다. 실험 결과로 운모의 경우 종횡비는 ρα= 13.5, ρβ= 1.8이 사용되 어, 20 wt% 함량일때 α11/αm는 약 0.56으로 감소하였으나, α33/αm는 오히려 1.018로 증가함을 보였다. 탈크의 경우의 종횡비는 ρα=3.7, ρβ= 1.4이었고 α11/αm는 0.63으로 감소하였다. 결국 운모와 탈크 모두 그 함량증가에 따라 종단방향과 횡단방향에서 열팽창률은 감소하였으나 수직방향에서는 초기 낮은 충전제 함량에서는 오히려 증가하는 경향을 보였다. Experimental study was performed regarding the effects of disc-like filler orientation and contents on the coefficient of thermal expansion (CTE) of polypropylene composites using the three dimensional ellipsoids (a1 > a2 > a3) analyzed by two aspect ratios(ρα=a1/a3 and ρβ=a1/a2). Measured data were compared with the theoretical approaches proposed by Lee et al. Mica and talc were useed as disk-like fillers in the composites. As experimental results, α11/αm decreased down to ca. 0.56 with mica content of 20 wt% and the aspect ratios, ρα=13.5, ρβ=1.8. However, α33/αm increased to more than 1. In the case of talc, α11/αm decreased to ca. 0.63 with 20 wt% and ρα=3.7, ρβ=1.4. Finally, the longitudinal CTEs (α11) of polypropylene composites decreased as filler contents increased, but normal CTE (α33) increased in the low filler contents like the theory.

판상형 충전제의 함량과 배향에 따른 PP복합체의 영률 변화 연구

서상범(Sang Bum Seo),이용현(Yong Hyun Lee),정선경(Sun Kyoung Jeong),이승구(Seung Goo Lee),이기윤(Kee Yoon Lee) 한국고분자학회 2012 폴리머 Vol.36 No.2

이 논문은 판상형 충전제의 함량과 배향에 따라 폴리프로필렌 복합체의 영률 변화에 미치는 영향을 연구 하였다. 이론적인 예측은 Lee와 그의 연구자들에 의해 제안된 두 개의 종횡비, ρα=a1/a3과 ρβ=a1/a2 를 이용하여 3차원 타원체의 형상을 계산하였고 실험값과 비교 분석하였다. 판상형 충전제로 운모와 탈크를 사용하였다. 충전제의 형태는 SEM을 이용해 관찰하였고, 종횡비는 고분자의 흐름을 기준으로 좌표축을 설정하여 통계적 방법으로 계 산하였다. 충전제가 운모인 경우에 ρα=13.5와 ρβ=1.8이었고, 탈크의 경우는 ρα=3.8과 ρβ=1.4이었다. 또한 충전제 의 2개의 종횡비와 함량이 기계적 물성에 미치는 영향을 실험적으로 연구하였다. 운모의 경우 30 wt% 함량일 때 E11이 약 2.7배 향상되었다. 탈크의 경우는 E11이 약 2.3배 향상하였다. This paper studied the effects of the content and the orientation of the disk shape fillers on the modulus of PP composites. The experimental results were compared with the theoretical calculations which included the three dimensional ellipsoids and analyzed by two aspect ratios, ρα=a1/a3 and ρβ=a1/a2 proposed by Lee and his researchers. Mica and talc were used as disk shape fillers in the composites. The shapes of mica and talc were observed by SEM and aspect ratios were statistically calculated. For the case of mica, the average aspect ratios were ρα=13.5 and ρβ=1.8, and for the case of talc, they were ρα=3.8 and ρβ=1.4. Also, the effects of two aspect ratios and the content of filler on the mechanical properties were studied: For 30 wt% of mica, E11 increased up to about 2.7 times, and for the other case of talc, E11 increased up to about 2.3 times, respectively.

DDD(the Defined Daily Dose) 방식에 의한 국내 항생제 사용량 산출 및 항생제 약제비 분석

이의경,장선미 大韓臨床藥理學會 2000 臨床藥理學會誌 Vol.8 No.1

재활용 실리카 슬러리의 기계 화학적 연마 특성 개선

이경진,서용진,이우선 대불대학교 2003 大佛大學校大學院 硏究論文集 Vol.2 No.1

In this paper, we have studied the possibility of recycle of reused silica slurry in order to reduce the costs of CMP slurry. The post- CMP thickness and within-wafer non-uniformity(WIWNU) were measured as a function of different slurry composition. As a experimental result, the performance of reused slurry with annealed silica abrasive of 2 wt% contents was showed high removal rate and law non-uniformity. Therefore, we propose two-step CMP process as follows ; In the first-step CMP, we can polish the thick and rough film surface using remaked slurry, and then, in the second-step CMP, we can polish the thin film and fine pattern using original slurry. In summary, we can expect the saving of high costs of slurry.

申采浩의 歷史·傳記小設

李慶善 한양대학교 한국학연구소 1984 韓國學論集 Vol.6 No.-

Not only as a fighter for Korean independence, thinkers, and historian, but as a writer under the Japanese colonization, Shin, Chae-ho(申?浩) worte many literary works. But, the study about his works was not so active. Moreover, it is also true that any regular study of his H.B.N. have not been tried. Now, the present writer aimed the purpose of this thesis at study of Shin's H.B.N. comparing it with his view of history, nationalism and literature. 1. Italy Konkook Samkul Jeon(伊太利健國三傑傳) (The Biographical novel of three heroes founding Italy) 1. K.S.J, translated the Iddi jienguo Sanjie Zhuan(意大利建國三傑傳) of Liang, Chi-Chao(梁啓超) (1873~1929) into Chinese and Ko-rean by Shin who was largely influenced by him, is a H.B.N. This novel is a story of three Italian heroes heroes such as Mazzini, Garibaldi, Cavour. In this novels, Shin suggested that Korean, inspired by these heroes, should resist against Japaneses. Namely, Shin wrote this novels for the purpose of infusing patriotism into the hearts of people and encouraging nationalism. 2. Euljimoonduck(乙支文德) (The Biographical novel of Gen. Euljimoonduck) The novel is a story of General Eulji, moon-duck who defeated Swei's(수) big force during Kokuryo(高句麗) age in Korean history. Presenting the hero who won the battle against other nation, Shin attempted to encourage racial consciousness that should fight against invader, and desired that such a hero should come into being. 3. Yishoonshinjeon(李舜臣傳) (The B.N.of Admiral Yi, shoon-shin) Yishoonshinjeon is a story of Admiral Yi who cut down Japa-nese navy during Japanese invasion in 1592 Showing a hero who gained a victory over Japanese that is invading now, Shin tried to cheer up patriotism and resistence against Japanese directly. 4. Choidotongjeon(催都統傳) (The B.N. of Gen Choi, Young) Choidotongjeon is a story of General Choi young(崔瑩) who tried to conquer Ming's(明) Manchuria region. Shin would be regret to lose this region. So, he desired to restore this region, and wanted that Korean nation should regain the lost country with cherishing in nation's mind desiring for rehabillitating it. 5. Conclusion Therefore, we learned to know the follwing. Shin's historical view of heroism that bero is a subject of history was reflected deeply in these novels. And he created these novel for the purpose of encouraging nation's patriotism, therby, making a model of hero, and with feverent hope that nation should act or fight against others and as these heroes. Consequently, the significance of these novels lie in the value the history of literatue than literary that.

가열 스테인레스 강 표면의 조성

이경철,함경희,안운선 성균관대학교 1991 論文集 Vol.42 No.1

스테인레스 강 304를 공기와 질소 기체속에서 200-500℃ 온도 범위로 가열 산화시킨 다음에 표면 산화층이 depth composition profile을 XPS로 구하였다. 기체/산화물 계면 부근에서는 주로 철이 나타나고 내부로 들어가면서 크롬의 농도가 증가한다. 그리고 크롬이 산화 상태를 나타내는 영역에서 철은 금속 상태를 나타내기 시작한다. 이런 현상은 표면쪽으로의 철 이온의 확산 속도와 용액속으로 용해속도가 다른 산화종의 확산 속도보다 빠르기 때문이라고 생각된다. 질소 기체 분위기 속에서 200℃로 가열한 시편은 공기중에서 열 처리한 것과 거의 비슷한 depth profile을 나타내었다. 그리고 이 온도에서는 공기중에서나 질소중에서 산화가 일어나지 않는다. The stainless steel 304 is oxidized at various temperatures between 200 through 500℃ temperature region both in the air and nitrogen atmosphere and analyzed them for the depth composition profile of surface region using X-ray photoelectron spectroscopy(XPS). It is found that Fe is concentrated in the gas/oxide interface, and Cr is found rich in the subsurface under the Fe rich layer. Fe begins to show a metallic state at the region where Cr is still in the oxidized state. These findings can be attributed to the greater diffusion rate of Fe ion compared to other oxidized species. The depth profile of the sample heated up to 200℃ in the nitrogen atmosphere gives a similar result with the one obtained from the sample heated in the air. It is found that no oxidation takes place at these low temperature region either in the air or in the nitrogen atmospheres.

유아 무용 교육에 관한 남·북한 비교 연구

이선경 한국유아체육학회 2003 한국유아체육학회지 Vol.4 No.-

본 연구는 유아 무용 교육에 관한 남·북한을 비교 연구함으로써 남·북한의 유아무용교육 의 현실을 파악하고 나아가 남·북한의 이질 성을 극복하기 위한 방안중의 하나로 감정적, 심리적 통일의 기안이 되는 유아무용교육의 지표를 설정하는데 필요한 기초 자료를 제공 함에 목적을 두고 있다. 분단 후에 남·북한 은 서로 다른 이념과 체제 속에서 각기 다른 길을 걸어온 결과 정치, 경제, 사회, 문화 및 교육까지 이질화의 골이 깊어지고 있고 이러 한 차이의 기본적인 출발은 아동기부터 형성 된 인격 및 가치관에서부터 출발하고 있다. 따라서 본 연구는 남·북한의 차이를 극복 하고 통일을 대비하기 위한 문제 의식하에 분 단교육에 대한 여러 측면 중에서 특히 유아 무용 교육에 관하여 그 이념 및 목적, 내용과 방법을 비교 분석하였으며 그 결과는 다음과 같다. 남한의 유아교육은 어린이의 잠재력과 가능성 을 신장하여 성장과 발달을 도와 개인의 행복 과 사회발전에 기여케 하려는 민주주의 교육 이념과 목적인데 비해서, 북한의 유아교육의 이념과 목적은 주체형의 혁명적 인간 육성과 여성의 노동력 동원을 용이하게 하려는데 있 다. 남한의 유아 무용 교육은 특별히 무용이 교과 수업으로 지정되어 있지는 않지만 5가지 생활 영역의 교육 내용 즉, 건강생활·사회생활· 표현생활·언어생활·탐구생활 중 건강생활과 표현생활의 영역에서 유아 발달에 있어 창의 적 발달 및 신체탐색을 통한 전인적 발달을 도모하는 통합적 영역의 무용교육을 하는 반 면 북한의 유아 무용 교육은 정치사상교양· 지적교육·정서교육·체육교육의 영역 중에서 무용 교과 수업은 정서교육의 영역으로 '노래 와 춤'교과로 지정되어 있고 또한, '노래와 춤' 교과의 교과서가 개발되어 있다. 따라서 정서교육영역의 교과목인 '노래와 춤'교과와 체육교육영역의 체육무용을 통해 어린이들의 체력을 튼튼히 하여 신체발달을 도모하 고 김일성 부자의 충실성 교양과 혁명 사상을 고취하여 혁명위업의 믿음직한 계승자로 지혜 롭고 튼튼하게 키우게 하고자 무용교육을 실 시하고 있음을 알 수 있다. The purpose of this study to realize the situation of the dance education for infants in South Korea and North Korea and, furthermore, to give basic information that is needed to set a barometer which can be a foundation of emotional and psychological reunification, as one of the ways to overcome the foreignness between South Korea and North Korea by studying the dance education for infants in South Korea and North Korea. After the division, the differences between them have been becoming deeper and deeper from in the culture to the polity, economy and society, because they have lived in completely different ideologies and political systems. These differences basically stem from their personality and belief which have been formed since they were children. Under the awareness to overcome the foreignness and prepare the reunification, this research analyzed the idea, goal and method in the education especially. The conclusions are like below. The dance education for infants in South Korea is not assigned to a general course, but it plays a role in integrated fields which aims at the whole man education by helping the infants to develope their creativity and the physical ability in the health and the expression fields which are belonged to 5 educational living fields of the health, society, expression, language, and investigation. On the other hand, the education in North Korea is taken in a general course, which is called 'Singing and Dancing', as education for emotion that is one of the educational fields which is consisted of the political ideology lesson, the intellectual lesson, the lesson for emotion, and the physical training. And the textbook for the course of 'Singing and Dancing' was devised. So it can be realized that the government put the courses in the operation to male the infants healthy for good physical development and make them trusty successors who have the idea of revolution and the faithfulness to Kim Ilseong and Kim Jeongil, by running the class of 'Singing and Dancing' which is in the education for emotion and the physical dancing class that is in the physical training.

정신분열병 환자의 인지기능 상태

이지혜,오소영,윤정흠,김선경,이귀행 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.1

목적: 정신분열병 환자의 적응 상태와 증상 형성에 영향을 주는 것으로 생각되는 인지기능 상태를 주의력, 형태 인식, 단어에 대한 구별과 종합 기능을 평가해봄으로써 알아보고자 하였다 방법: 정신분열병 환자 27명과 대조군 27명을 대상으로 하였고, 평가 도구로써 주의력은 K-WAIS의 숫자외우기 문제로, 형태 인식은 K-WAIS의 모양 맞추기 문제와 숨은 그림 찾기로, 단어 기능은 K-WAIS의 공통성 문제와 단어 차이 검사로 각각 이루어졌다. 통계 처리는 SPSS 11.5를 이용하여 Chi-Square test와 Student's t-test로 검증을 하였다. 결과: 정신분열군은 숫자외우기, 숨은 그림 찾기, 모양 맞추기에서는 대조군보다 낮은 점수를 보였다. 단어 차이 검사와 공통성 문제에서는 양군에서 차이를 보이지 않았다. 결론: 본 연구에서 정신분열군의 인지 기능은 정상인 대조군에 비해 주의력과 형태 인식 기능이 유의하게 떨어져 있었으며, 단어들을 구분하고 종합하는 능력은 차이가 없었다. 이런 결과는 임상적으로 정신분열병에서 보이는 망상이 언어적인 측면에서는 어느 정도 전달이 되는 현상과 일치하지만 주의나 형태인지와 같은 기본적인 과정에서 장애가 있다는 추정을 하게 한다. Purpose: This study aimed to investigate the cognitive function in patients with schizophrenia by assessing attention, recognition of a shape, and verbal function. Methods: The subjects were 27 patients with schizophrenia group and 27 control group. Attention was assessed by the digit span task(K-WAIS subtest). The recognition of a shape was assessed by the object assembly task(K-WAIS subtest) and hidden figure task. Verbal function was assessed by Similiarities(K-WAIS subtest) and the different word task. Analysis was performed by the Chi-Square test and Student's t-test via SPSS 11.5. Result: Schizophrenia group had statistically lower scores than control group in digital span, hidden figure and object assembly. There was no difference between two groups in dimensions of difference in words and similarity. Conclusion: This study showed that patients with schizophrenia had impairments in attention and recognition of shape, and no difference between two groups in verbal ability. These explained the partial communicative function of delusion in verbal level. The formation of delusion might be related to the more basic elements such as attention and recognition of shape.

중합효소연쇄반응을 이용한 도말양성 폐결핵 환자에서의 결핵균 DNA 검출방법에 관한 연구

이종진,김애경,조해정,한표성,홍석철,김주옥,김선영 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

Polymerase chain reaction (PCR) is the most sensitive and rapid method for the diagnosis of M.tuberculosis infection. Many reports have shown different methods for mycobacterial DNA extraction, but revealed many differences in simplicity and time-consumption. We studied which method was the best among 7 different ones for DNA extraction from 32 smear-positive sputa, using PCR of targeting 123bp DNA fragment of IS6110. The methods were the following : SDS-Microwave oven method, NaOH Lysis method, Triton X-100, Proteinase K method, Lysis buffer method. SDS-Proteinase K method, Bead Beater method, and Bead Beater/CTAB method. The amplification products were identified by electrophoresis on ethidium bromide-stained agarose gels, and confirmed by restriction enzyme, Southern blot hybridization, and DNA sequencing. All 32 cases were positive (100%) by the 7 different methods. It took 1 hour or more to detect DNA in SDS-Microwave oven method, NaOH Lysis method, and Bead beater/CTAB method. It took 2 hours or less in the others. SDS-Proteinase K method and Bead Beater/CTAB method were simpler and more convinient than the others. These results suggest that SDS-Proteinase K method and Bead Beater/CTAB method might be better than the others for the extraction of mycobacterial DNA in terms of simplicity and time-consumption, although all the methods were sensitive.